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Co-Reactant Engineering for Au Nanocluster Electrochemiluminescence
Nguyen Phuc An Khang1, Joohoon Kim1,2,3
1Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea.
Molecules (Basel, Switzerland)
|December 31, 2025
Summary
Co-reactant engineering enhances gold nanocluster electrochemiluminescence (ECL) by improving luminophore efficiency. Strategies include novel co-reactants, accelerators, integrated assemblies, and host-guest systems for stable, high-intensity ECL emission.
Area of Science:
- Electrochemistry
- Nanotechnology
- Materials Science
Background:
- Co-reactants are crucial for co-reactant-based electrochemiluminescence (ECL) systems, generating reactive intermediates that drive luminophore emission.
- Gold nanoclusters (Au NCs) are promising ECL luminophores due to tunable properties and biocompatibility, but face challenges like limited excited-state generation and non-radiative losses.
Purpose of the Study:
- To provide a comprehensive overview of co-reactant engineering strategies for improving Au NC-based ECL systems.
- To highlight recent advancements in optimizing ECL performance through co-reactant modification.
Main Methods:
- Systematic review of co-reactant engineering strategies in ECL.
- Analysis of approaches including innovative co-reactants, co-reaction accelerators, integrated nanostructures, and host-guest systems.
Main Results:
- Co-reactant engineering effectively addresses limitations in Au NC ECL, enhancing efficiency and stability.
- Strategies like using less toxic co-reactants, employing accelerators, creating integrated assemblies, and host-guest encapsulation significantly boost ECL performance.
Conclusions:
- Co-reactant engineering is vital for advancing Au NC-based ECL applications.
- Further research into these strategies promises expanded applications and improved ECL system performance.
